We investigate the evolution of an electromagnetic field in the spacetime of a stringy black hole.The objectpicture of the quasinormal ringing has been obtained by the finite difference method.Compared with a Schwarzs...We investigate the evolution of an electromagnetic field in the spacetime of a stringy black hole.The objectpicture of the quasinormal ringing has been obtained by the finite difference method.Compared with a Schwarzschildblack hole,the results show that the electromagnetic field damps more slowly for a stringy black hole.展开更多
The M operation is introduced in η-ξ spacetime to derive the tilde rules in thermo field dynamics (TFD). This leads to an explanation of the tilde system in TFD as the system in region II of η-ξ spacetime.
The real time thermal propagator with 2×2 matrix structure is derived in the functional formalism of the field theory inη-ξspacetime.It is emphasized that the trouble-shooting factorization of generating functi...The real time thermal propagator with 2×2 matrix structure is derived in the functional formalism of the field theory inη-ξspacetime.It is emphasized that the trouble-shooting factorization of generating functional in the time-path method can be avoided in this derivation.展开更多
基金National Natural Science Foundation of China under Grant No.10573004
文摘We investigate the evolution of an electromagnetic field in the spacetime of a stringy black hole.The objectpicture of the quasinormal ringing has been obtained by the finite difference method.Compared with a Schwarzschildblack hole,the results show that the electromagnetic field damps more slowly for a stringy black hole.
基金Supported by the National Natural Science Foundation of China under Grant No.19475005。
文摘The M operation is introduced in η-ξ spacetime to derive the tilde rules in thermo field dynamics (TFD). This leads to an explanation of the tilde system in TFD as the system in region II of η-ξ spacetime.
基金Supported by the National Natural Science Foundation of China under Grant No.19475005.
文摘The real time thermal propagator with 2×2 matrix structure is derived in the functional formalism of the field theory inη-ξspacetime.It is emphasized that the trouble-shooting factorization of generating functional in the time-path method can be avoided in this derivation.
